- Excellent light transmission:up to 88% of light
- transmitted through .
- Fine weatherresistance:highly ultraviolet-resistant capability
- High impact resistance:the impact strength of the PC sheet is 250-300 times as strong as   ordinary glass and 2 times of toughened glass. -- .
- Strong heat deflection temperature:temperature resistance is from -40 to 135 degree -- .
- The bracket of the face mask is made out of the superior aluminum alloy material.It's --  
- very pliable and tough by oxygenated or spary-painted on the surface of bracket.